Perfect air purification for medium-sized rooms, living rooms, and workplaces: The AF 30 air purifier cleans indoor air of allergens, pollutants, and pathogens through its multi-layered filter system. Additional features include activated carbon filling, a display for the alphanumeric indication of air quality in PM-2.5 particles in µg/m³, air quality indication via a color code, temperature, and relative humidity. Furthermore, the air purifier excels with its timer function, child lock (lock function), night mode, and whisper-quiet operation, along with a filter efficiency of 99.95% for 0.3 µm particles and a high-quality laser sensor for the automatic mode. This means that the automatic mode and performance level adjust automatically to the degree of air pollution. Additionally, the filter lifespan is approximately 1 year, depending on air pollution and usage intensity.